Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Body Control Module: Function
- TAIL LAMP AUTO CUT
- When the KEY is off and Driver side door is opened, TAIL LAMP turns automatically off.
- Also, in case the Driver's seat door opened and DOOR WARNING SW is off, the TAIL LAMP turns automatically off.
- After turned automatically off, TAIL LAMP turns on and AUTO CUT function cancels in case TAIL LAMP SW is ON after OFF.
- If the KEY is ON after the automatic turn-off, TAIL LAMP turns on and AUTO CUT function is canceled.
- IGN KEY HOLE Lighting
- When driver's door is open, IGN key hole light should turn on.
When the driver's door is closed, IGN key hole light should be ON for 30 seconds before it turns itself off.
- When the passenger's door is opened, IGN KEY HOLE light should turn on.
When the passenger's door is closed, IGN KEY HOLE lights should turn on for 30 seconds before it turns itself off.
- Remember after checking steps 1 and 2, that as soon as IGN 1 SW is switched on, IGN key hole light should turn OFF immediately. (However, if you're in ARM MODE, IGN key hole lighting should be OFF.)
- When driver's door is open, IGN key hole light should turn on.
- DECAYED ROOM LAMP
ROOM LAMP OFF STATE
ROOM LAMP OFF STATE DESCRIPTION CHART (1 OF 3)State Description First condition Room lamp OFF & IGN1 off & 4Door SW off Event IGN1 off & (4Door SW off → on for 100ms) Action Change ROOM LAMP ON for 20 min state.
Output Room Lamp for 20 +/-1 minute.ROOM LAMP OFF STATE DESCRIPTION CHART (2 OF 3)State Description First condition Room lamp OFF & IGN1 off & 4Door SW off Event UNLOCK2 Action Change ROOM LAMP ON for 30s state
Output Room Lamp for 30 sec.ROOM LAMP OFF STATE DESCRIPTION CHART (3 OF 3)State Description First condition Room Lamp OFF & IGN1 off & 4Door SW off Event IGN1 ON & 4DRSW on Action Change ROOM LAMP ON state
Output Room Lamp (No limit time)ROOM LAMP ON FOR 30S STATE
ROOM LAMP ON FOR 30S STATE DESCRIPTION CHART (1 OF 3)State Description First condition Room lamp ON for 30s & IGN1 OFF Event 4Door SW off → on for 100ms Action Change ROOM LAMP ON for 20 min state.
Output Room Lamp for 20 ± 1 minute.ROOM LAMP ON FOR 30S STATE DESCRIPTION CHART (2 OF 3)State Description First condition Room lamp ON for 30s & IGN1 OFF Event UNLOCK2 Action Change ROOM LAMP ON for 30s state.
Output Room Lamp for 30 sec.ROOM LAMP ON FOR 30S STATE DESCRIPTION CHART (3 OF 3)State Description First condition Room Lamp ON for 30s & IGN1 OFF Event IGN1 ON
Or 30s timer elapsed
Or ALL DOOR LOCKAction Change ROOM LAMP DECAYING state
Decaying Room Lamp output for 2 ± 0.2 sec offROOM LAMP ON FOR 20MIN STATE
ROOM LAMP ON FOR 20MIN STATE DESCRIPTION CHART (1 OF 3)State Description First condition ROOM LAMP ON for 20min & IGN1 OFF Event IGN1 ON Action Change ROOM LAMP ON state.
Output Room Lamp (no limit time).ROOM LAMP ON FOR 20MIN STATE DESCRIPTION CHART (2 OF 3)State Description First condition ROOM LAMP ON for 20min & IGN1 OFF Event 4Door SW off Action Change ROOM LAMP ON for 30s state.
Output Room Lamp for 30 sec.ROOM LAMP ON FOR 20MIN STATE DESCRIPTION CHART (3 OF 3)State Description First condition ROOM LAMP ON for 20min & IGN1 OFF Event (4Door SW off & ALL DOOR LOCK)
Or 20min timer elapsedAction Change ROOM LAMP DECAYING state.
Decaying Room Lamp output for 2 ± 0.2 sec off.ROOM LAMP DECAYING STATE
ROOM LAMP DECAYING STATE DESCRIPTION CHART (1 OF 4)State Description First condition ROOM LAMP DECAYING & IGN1 OFF Event 4Door SW off → on for 100ms Action Change ROOM LAMP ON for 20 min state.
Output Room Lamp for 20 ± 1 minute.ROOM LAMP DECAYING STATE DESCRIPTION CHART (2 OF 4)State Description First condition ROOM LAMP DECAYING & IGN1 OFF & 4Door SW off Event UNLOCK2 Action Change ROOM LAMP ON for 30sec state.
Output Room Lamp for 30 sec.ROOM LAMP DECAYING STATE DESCRIPTION CHART (3 OF 4)State Description First condition ROOM LAMP DECAYING Event Room lamp decaying completed Action Change ROOM LAMP OFF state.
STOP Room Lamp output.ROOM LAMP DECAYING STATE DESCRIPTION CHART (4 OF 4)State Description First condition ROOM LAMP DECAYING Event IGN1 ON & 4Door SW ON Action Change ROOM LAMP ON state.
Output Room Lamp (no limit time).ROOM LAMP ON STATE
ROOM LAMP ON STATE DESCRIPTION CHART (1 OF 3)State Description First condition ROOM LAMP ON & IGN1 ON & 4Door SW on Event 4Door SW off Action Change ROOM LAMP DECAYING state.
Decaying Room Lamp output for 2 ± 0.2 sec off.ROOM LAMP ON STATE DESCRIPTION CHART (2 OF 3)State Description First condition ROOM LAMP ON & IGN1 ON & 4Door SW on Event IGN1 off. Action Change ROOM LAMP ON for 20min state.
Output Room Lamp for 20 ± 1 minute.ROOM LAMP ON STATE DESCRIPTION CHART (3 OF 3)State Description First condition ROOM LAMP ON & IGN1 ON & 4Door SW on Event 4Door SW off & IGN1 OFF Action Change ROOM LAMP ON for 30s state.
Output Room Lamp for 30 sec.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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